23520791 has 4 divisors (see below), whose sum is σ = 26880912. Its totient is φ = 20160672.

The previous prime is 23520787. The next prime is 23520793. The reversal of 23520791 is 19702532.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23520791 - 2² = 23520787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23520793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1680050 + ... + 1680063.

It is an arithmetic number, because the mean of its divisors is an integer number (6720228).

Almost surely, 2^23520791 is an apocalyptic number.

23520791 is a deficient number, since it is larger than the sum of its proper divisors (3360121).

23520791 is an equidigital number, since it uses as much as digits as its factorization.

23520791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360120.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 23520791 is about 4849.8238112327. The cubic root of 23520791 is about 286.5171621426.

The spelling of 23520791 in words is "twenty-three million, five hundred twenty thousand, seven hundred ninety-one".